> Then there's Mark Z who is throwing away piles of money, but nothing to show for it other than letting people easily hack his social media sites?

I mean, FB/Meta have been using lots of GPUs and compute for well over a decade at this point, they definitely are one of the few companies who can make use of relatively absurd amounts of these to drive revenue (i.e. improve ranking for both personal/organic and paid posts).

Whether or not they'll get a return from this wave is much more up in the air.